306 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			306 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
| #region MigraDoc - Creating Documents on the Fly
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| //
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| // Authors:
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| //   Klaus Potzesny
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| //
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| // Copyright (c) 2001-2017 empira Software GmbH, Cologne Area (Germany)
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| //
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| // http://www.pdfsharp.com
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| // http://www.migradoc.com
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| // http://sourceforge.net/projects/pdfsharp
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| //
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| // Permission is hereby granted, free of charge, to any person obtaining a
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| // copy of this software and associated documentation files (the "Software"),
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| // to deal in the Software without restriction, including without limitation
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| // the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| // and/or sell copies of the Software, and to permit persons to whom the
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| // Software is furnished to do so, subject to the following conditions:
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| //
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| // The above copyright notice and this permission notice shall be included
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| // in all copies or substantial portions of the Software.
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| //
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| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
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| // DEALINGS IN THE SOFTWARE.
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| #endregion
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| 
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| using System.Diagnostics;
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| using MigraDoc.DocumentObjectModel;
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| using MigraDoc.DocumentObjectModel.Tables;
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| using PdfSharp.Drawing;
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| 
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| namespace MigraDoc.Rendering
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| {
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|     /// <summary>
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|     /// Renders a single Border.
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|     /// </summary>
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|     public class BordersRenderer
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|     {
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|         public BordersRenderer(Borders borders, XGraphics gfx)
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|         {
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|             Debug.Assert(borders.Document != null);
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|             _gfx = gfx;
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|             _borders = borders;
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|         }
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| 
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|         private Border GetBorder(BorderType type)
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|         {
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|             return _borders.GetBorderReadOnly(type);
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|         }
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| 
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|         private XColor GetColor(BorderType type)
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|         {
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|             Color clr = Colors.Black;
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| 
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|             Border border = GetBorder(type);
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|             if (border != null && !border.Color.IsEmpty)
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|                 clr = border.Color;
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|             else if (!_borders.Color.IsEmpty)
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|                 clr = _borders.Color;
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| 
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| #if noCMYK
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|       return XColor.FromArgb((int)clr.Argb);
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| #else
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|             //      bool cmyk = false; // BUG CMYK
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|             //      if (_borders.Document != null)
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|             //        cmyk = _borders.Document.UseCmykColor;
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|             //#if DEBUG
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|             //      else
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|             //        GetT ype();
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|             //#endif
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|             return ColorHelper.ToXColor(clr, _borders.Document.UseCmykColor);
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| #endif
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|         }
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| 
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|         private BorderStyle GetStyle(BorderType type)
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|         {
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|             BorderStyle style = BorderStyle.Single;
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| 
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|             Border border = GetBorder(type);
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|             if (border != null && !border._style.IsNull)
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|                 style = border.Style;
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|             else if (!_borders._style.IsNull)
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|                 style = _borders.Style;
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|             return style;
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|         }
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| 
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|         public XUnit GetWidth(BorderType type)
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|         {
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|             if (_borders == null)
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|                 return 0;
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| 
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|             Border border = GetBorder(type);
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| 
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|             if (border != null)
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|             {
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|                 if (!border._visible.IsNull && !border.Visible)
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|                     return 0;
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| 
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|                 if (!border._width.IsNull)
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|                     return border.Width.Point;
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| 
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|                 if (!border._color.IsNull || !border._style.IsNull || border.Visible)
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|                 {
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|                     if (!_borders._width.IsNull)
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|                         return _borders.Width.Point;
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| 
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|                     return 0.5;
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|                 }
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|             }
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|             else if (!(type == BorderType.DiagonalDown || type == BorderType.DiagonalUp))
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|             {
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|                 if (!_borders._visible.IsNull && !_borders.Visible)
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|                     return 0;
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| 
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|                 if (!_borders._width.IsNull)
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|                     return _borders.Width.Point;
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| 
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|                 if (!_borders._color.IsNull || !_borders._style.IsNull || _borders.Visible)
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|                     return 0.5;
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|             }
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|             return 0;
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|         }
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| 
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|         /// <summary>
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|         /// Renders the border top down.
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|         /// </summary>
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|         /// <param name="type">The type of the border.</param>
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|         /// <param name="left">The left position of the border.</param>
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|         /// <param name="top">The top position of the border.</param>
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|         /// <param name="height">The height on which to render the border.</param>
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|         public void RenderVertically(BorderType type, XUnit left, XUnit top, XUnit height)
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|         {
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|             XUnit borderWidth = GetWidth(type);
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|             if (borderWidth == 0)
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|                 return;
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| 
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|             left += borderWidth / 2;
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|             _gfx.DrawLine(GetPen(type), left, top + height, left, top);
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|         }
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| 
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|         /// <summary>
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|         /// Renders the border top down.
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|         /// </summary>
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|         /// <param name="type">The type of the border.</param>
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|         /// <param name="left">The left position of the border.</param>
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|         /// <param name="top">The top position of the border.</param>
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|         /// <param name="width">The width on which to render the border.</param>
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|         public void RenderHorizontally(BorderType type, XUnit left, XUnit top, XUnit width)
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|         {
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|             XUnit borderWidth = GetWidth(type);
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|             if (borderWidth == 0)
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|                 return;
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| 
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|             top += borderWidth / 2;
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|             _gfx.DrawLine(GetPen(type), left + width, top, left, top);
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|         }
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| 
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| 
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|         public void RenderDiagonally(BorderType type, XUnit left, XUnit top, XUnit width, XUnit height)
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|         {
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|             XUnit borderWidth = GetWidth(type);
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|             if (borderWidth == 0)
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|                 return;
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| 
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|             XGraphicsState state = _gfx.Save();
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|             _gfx.IntersectClip(new XRect(left, top, width, height));
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| 
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|             if (type == BorderType.DiagonalDown)
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|                 _gfx.DrawLine(GetPen(type), left, top, left + width, top + height);
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|             else if (type == BorderType.DiagonalUp)
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|                 _gfx.DrawLine(GetPen(type), left, top + height, left + width, top);
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| 
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|             _gfx.Restore(state);
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|         }
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| 
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|         public void RenderRounded(RoundedCorner roundedCorner, XUnit x, XUnit y, XUnit width, XUnit height)
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|         {
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|             if (roundedCorner == RoundedCorner.None)
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|                 return;
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| 
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|             // As source we use the vertical borders.
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|             // If not set originally, they have been set to the horizontal border values in TableRenderer.EqualizeRoundedCornerBorders().
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|             BorderType borderType = BorderType.Top;
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|             if (roundedCorner == RoundedCorner.TopLeft || roundedCorner == RoundedCorner.BottomLeft)
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|                 borderType = BorderType.Left;
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|             if (roundedCorner == RoundedCorner.TopRight || roundedCorner == RoundedCorner.BottomRight)
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|                 borderType = BorderType.Right;
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| 
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|             XUnit borderWidth = GetWidth(borderType);
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|             XPen borderPen = GetPen(borderType);
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| 
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|             if (borderWidth == 0)
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|                 return;
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| 
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| 
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|             x -= borderWidth / 2;
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|             y -= borderWidth / 2;
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|             XUnit ellipseWidth = width * 2 + borderWidth;
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|             XUnit ellipseHeight = height * 2 + borderWidth;
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| 
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|             switch (roundedCorner)
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|             {
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|                 case RoundedCorner.TopLeft:
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|                     _gfx.DrawArc(borderPen, new XRect(x, y, ellipseWidth, ellipseHeight), 180, 90);
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|                     break;
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|                 case RoundedCorner.TopRight:
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|                     _gfx.DrawArc(borderPen, new XRect(x - width, y, ellipseWidth, ellipseHeight), 270, 90);
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|                     break;
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|                 case RoundedCorner.BottomRight:
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|                     _gfx.DrawArc(borderPen, new XRect(x - width, y - height, ellipseWidth, ellipseHeight), 0, 90);
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|                     break;
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|                 case RoundedCorner.BottomLeft:
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|                     _gfx.DrawArc(borderPen, new XRect(x, y - height, ellipseWidth, ellipseHeight), 90, 90);
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|                     break;
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|             }
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|         }
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| 
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|         private XPen GetPen(BorderType type)
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|         {
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|             XUnit borderWidth = GetWidth(type);
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|             if (borderWidth == 0)
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|                 return null;
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| 
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|             XPen pen = new XPen(GetColor(type), borderWidth);
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|             BorderStyle style = GetStyle(type);
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|             switch (style)
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|             {
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|                 case BorderStyle.DashDot:
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|                     pen.DashStyle = XDashStyle.DashDot;
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|                     break;
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| 
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|                 case BorderStyle.DashDotDot:
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|                     pen.DashStyle = XDashStyle.DashDotDot;
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|                     break;
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| 
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|                 case BorderStyle.DashLargeGap:
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|                     pen.DashPattern = new double[] { 3, 3 };
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|                     break;
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| 
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|                 case BorderStyle.DashSmallGap:
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|                     pen.DashPattern = new double[] { 5, 1 };
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|                     break;
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| 
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|                 case BorderStyle.Dot:
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|                     pen.DashStyle = XDashStyle.Dot;
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|                     break;
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| 
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|                 case BorderStyle.Single:
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|                 default:
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|                     pen.DashStyle = XDashStyle.Solid;
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|                     break;
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|             }
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|             return pen;
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|         }
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| 
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|         public bool IsRendered(BorderType borderType)
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|         {
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|             if (_borders == null)
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|                 return false;
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| 
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|             switch (borderType)
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|             {
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|                 case BorderType.Left:
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|                     if (_borders._left == null || _borders._left.IsNull())
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|                         return false;
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|                     return GetWidth(borderType) > 0;
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| 
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|                 case BorderType.Right:
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|                     if (_borders._right == null || _borders._right.IsNull())
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|                         return false;
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|                     return GetWidth(borderType) > 0;
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| 
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|                 case BorderType.Top:
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|                     if (_borders._top == null || _borders._top.IsNull())
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|                         return false;
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|                     return GetWidth(borderType) > 0;
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| 
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|                 case BorderType.Bottom:
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|                     if (_borders._bottom == null || _borders._bottom.IsNull())
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|                         return false;
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| 
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|                     return GetWidth(borderType) > 0;
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| 
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|                 case BorderType.DiagonalDown:
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|                     if (_borders._diagonalDown == null || _borders._diagonalDown.IsNull())
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|                         return false;
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|                     return GetWidth(borderType) > 0;
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| 
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|                 case BorderType.DiagonalUp:
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|                     if (_borders._diagonalUp == null || _borders._diagonalUp.IsNull())
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|                         return false;
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| 
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|                     return GetWidth(borderType) > 0;
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|             }
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|             return false;
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|         }
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| 
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|         readonly XGraphics _gfx;
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|         readonly Borders _borders;
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|     }
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| }
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